chapter 19

3. the frequency or rate that it vibrates naturally when disturbed.
5. unit of amplitude
8. a motion in which the restoring force is directly proportional to the displacement of the body from its mean position.
10. The average velocity of a damped system
11. What is the name of the force that causes oscillatory motion?
13. movement back and forth at a regular speed.
15. Damping forces must be proportional to the … of the system
17. The frequency of a damped system
18. The maximum displacement of the oscillating particle
19. the difference in phase angle between two sinusoids or phasors.
22. The time it takes to travel one oscillation
24. In a torsional oscillator the torque exerted by the wire is proportional to

1. An oscillating system is one in which a particle or set of particles
2. the number of waves that pass a fixed point in unit time
4. Using a torsional oscillator we can calculate … of the given body
6. what is always true of an equilibrium point of an oscillating system?
7. The amplitude of a damped system … exponentially
9. A pendulum can be used to calculate the … of acceleration
12. What kinds of objects have natural frequencies?
14. unit of period
16. A sine wave is a geometric waveform that oscillates
20. Periodic motion is motion in which an object returns to its position at some later time
21. The period of a pendulum depends on … and gravitational acceleration
22. the point that an oscillating mass has reached within the complete cycle of an oscillation.
23. unit of frequency